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40 lines
1.2 KiB
40 lines
1.2 KiB
import numpy as np
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import pytest
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from pandas import (
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MultiIndex,
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Series,
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)
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import pandas._testing as tm
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class TestRepeat:
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def test_repeat(self):
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ser = Series(np.random.randn(3), index=["a", "b", "c"])
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reps = ser.repeat(5)
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exp = Series(ser.values.repeat(5), index=ser.index.values.repeat(5))
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tm.assert_series_equal(reps, exp)
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to_rep = [2, 3, 4]
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reps = ser.repeat(to_rep)
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exp = Series(ser.values.repeat(to_rep), index=ser.index.values.repeat(to_rep))
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tm.assert_series_equal(reps, exp)
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def test_numpy_repeat(self):
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ser = Series(np.arange(3), name="x")
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expected = Series(
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ser.values.repeat(2), name="x", index=ser.index.values.repeat(2)
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)
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tm.assert_series_equal(np.repeat(ser, 2), expected)
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msg = "the 'axis' parameter is not supported"
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with pytest.raises(ValueError, match=msg):
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np.repeat(ser, 2, axis=0)
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def test_repeat_with_multiindex(self):
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# GH#9361, fixed by GH#7891
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m_idx = MultiIndex.from_tuples([(1, 2), (3, 4), (5, 6), (7, 8)])
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data = ["a", "b", "c", "d"]
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m_df = Series(data, index=m_idx)
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assert m_df.repeat(3).shape == (3 * len(data),)
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